The father of drug arrest teenager Bella Culley has vowed to stay in Georgia for 'as long as it takes' - as organised crime experts fear British backpackers are being targeted by the Thai cartel.

Niel Culley, 49, has still not been able to visit the 18-year-old despite jetting out to the Black Sea nation as soon as news broke of her arrest last Tuesday night.

He is facing every parent's worst nightmare as he battles to get information on how Bella allegedly came to be in possession of 14kg of cannabis and hash.

Mr Culley, an offshore oil rig technician who lives in Vietnam, is being supported by his sister Kerrie Culley, 51, in Tbilisi.

'I can't say anything but I will be here for as long as it takes,' he told the Mail. 'I obviously have no experience in dealing with situations like this and it’s very difficult.'